42326587 has 2 divisors, whose sum is σ = 42326588. Its totient is φ = 42326586.

The previous prime is 42326569. The next prime is 42326593. The reversal of 42326587 is 78562324.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42326587 is a prime.

It is not a weakly prime, because it can be changed into another prime (42326527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21163293 + 21163294.

It is an arithmetic number, because the mean of its divisors is an integer number (21163294).

Almost surely, 2^42326587 is an apocalyptic number.

42326587 is a deficient number, since it is larger than the sum of its proper divisors (1).

42326587 is an equidigital number, since it uses as much as digits as its factorization.

42326587 is an evil number, because the sum of its binary digits is even.

The product of its digits is 80640, while the sum is 37.

The square root of 42326587 is about 6505.8886403012. Note that the first 3 decimals coincide. The cubic root of 42326587 is about 348.5013115530.

The spelling of 42326587 in words is "forty-two million, three hundred twenty-six thousand, five hundred eighty-seven".